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List of California area codes - Wikipedia
California Area Codes Map - Maps of World
California Area Codes Map - Ontheworldmap.com
California Area Codes: List, Map, and Phone Lookup - Wirefly
United States, California - Area Phone Codes
California Area Codes - Zipdatamaps
NANPA : Number Resources - NPA (Area) Codes
California Area Codes - Infoplease
California Area Codes by State
California Area Codes - World Time Clock & Map
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